Battery Light Flashing when idle.

[Wilson9]

Had a search and cant seem to find an answer.

Got the battery light flashing on when idle, when driving it goes off. Battery seems fine and car starts no problem.

Anyone any ideas what it could be, loose earth somewhere or wire near alternator.

thanks

 

[dazvessey]

try terminals on cables to and frm alternater and also stick a multimeter on to see what its kicking out on idle should be around 13/14 volts

 

[TALBOTL]

I had this problem start the engine then stay inside the car take the key out and press the unlock button 3 times jobs a good en (on mine anyway haha)

 

[Wilson9]

Will have a look at those cables and also try the key method. Thanks

 

[JPS3290]

I would assume its the alternator not supplying sufficient charge while the engine is idle. The car's detecting a draw of current from the battery and flashing the warning light on the dash to let you know.

Once your driving the revs are up and putting in more power than when your idle. You'll probably find just by holding the revs higher while stationary it'll go off after a short time?

My advice is use vagcom to check it and get it fixed asap. Winters around the corner and that will get worse once you start using headlights, heater, demister, fog lights etc etc constantly.